HAProxy Container Setup

Help!
1

So I have read the documentation but honestly without seeing an actual example of a config I am really having a hard time getting my head wrapped around this.

I have the following setup:

I have 1x physical baremetal machine that has Ubuntu running with HAProxy installed as an application directly on the operating system and then Docker that is running multiple containers.

PGDCkU4.png1894×967 75.8 KB

Before anyone freaks out, this is just running as a temporary/example and is NOT production.

But I am not sure how to write out the HAProxy config file. I have it currently as:

https://hastebin.com/edibifetif.cfg

I have the following domains that are going to be pointing to my public IP:

Can someone please assist me with showing the config file should be written. I am looking at this tutorial:

But I am not sure if the containers would be properly like this:

https://hastebin.com/danuparoqi.cfg

Can someone please help out?

2

Hi,

as I can see your global/default configuration is default. Thats a config to start with… but your config has some mistakes.

It looks like you try to load-balance between to different application services! I think you must separate this. I attached a simple example for you. In the example there where 2 frontends (one for your services ans one for the stats) and multiple backends for your services eg. chat cloud etc.

   frontend http_FE
   bind *:80
  
   acl is_chat hdr(host) -i chat.temp.com
   acl is_cloud hdr(host) -i cloud1.temp.com -i cloud2.temp.com
   
   use_backend chat_BE if is_chat
   use_backend cloud_BE if is_cloud
   
   #default_backend http_back
   # you can use the default backend, but in my example I don't use it

backend chat_BE
   mode http # I prefer to specify the backend mode per backend, I think it better for the abstract
   #balance roundrobin you don't need this because you only have one backend for the chat
   server chat.temp.com 172.17.0.4:4002 check
   
backend cloud_BE
   mode http # I prefer to specify the backend mode per backend, I think it better for the abstract
   #balance roundrobin you don't need this because you only have one backend for the chat
   server cloud1.temp.com 172.17.0.2:4001 check
   
listen stats
   bind *:9999
   mode http
   stats enable
   stats realm Haproxy\ Stats
   stats uri /haproxy_stats
   stats auth user:pw
   stats admin if TRUE # with this option it is possible to switch your backend-server in maintain-mode etc.

I hope that is mistake free… it’s fast written in Notepad++

All is my personal preference… You can do things different!

Greets hans0r